Table 2: Specific mechanical tensile and bending properties of nonfoamed and foamed Bio-PC (the weight of the nonfoamed Bio-PC multipurpose test specimen is 13.53 g).

PropertyBio-PCBio-PC foams

CBA concentration(wt.%)02233
Weight reduction(%)04.911.25.110.6
Density(kg m−3)1363 ± 11296 ± 31211 ± 181293 ± 61219 ± 10
Specific tensile modulus(MPa/(kg m−3))1.98 ± 0.051.95 ± 0.071.92 ± 0.101.97 ± 0.101.91 ± 0.05
Specific tensile strength(kPa/(kg m−3))52.0 ± 0.450.0 ± 0.449.1 ± 1.349.4 ± 0.349.3 ± 0.8
Specific bending modulus(MPa/(kg m−3))1.96 ± 0.012.03 ± 0.012.13 ± 0.032.03 ± 0.012.12 ± 0.01
Specific bending strength at (kPa/(kg m−3))77.0 ± 0.079.5 ± 0.083.1 ± 0.978.3 ± 0.482.1 ± 0.5
Specific bending strength at 3.5%(kPa/(kg m−3))60.1 ± 0.362.4 ± 0.266.0 ± 0.462.2 ± 0.264.9 ± 0.3